China Institute of Manufacturing Development, Nanjing University of Information Science & Technology, Nanjing 210044, China.
School of Management Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China.
Int J Environ Res Public Health. 2019 Aug 23;16(17):3076. doi: 10.3390/ijerph16173076.
Scientifically justifiable spatial structure can not only promote the efficient use of regional resources, but can also effectively avoid "urban diseases", such as traffic congestion, housing shortage, resource scarcity, and so on. It is the "regulator" and "booster" of regional development. Firstly, this paper measures the spatial structure of the Yangtze River Economic Belt from the four dimensions of scale distribution, central structure, spatial connection, and compactness: Gini coefficient of urban scale, urban primacy, regional economic linkage strength, and spatial compactness. Secondly, the optimized Super-Slack Based Measure-Undesirable model is used to evaluate the sustainable development status of the Yangtze River Economic Belt. Finally, a sustainable development correlation analysis model based on regional spatial structure is constructed. Based on the overall perspective of the Yangtze River Economic Belt and the individual perspective of 11 provinces and cities, the relationship between the spatial structure of the Yangtze River Economic Belt and sustainable development is analyzed. It is found that the impact of the four spatial structure indicators on the sustainable development level of the Yangtze River Economic Zone is relatively stable in five different periods. The ranking results are as follows: Gini coefficient of urban scale > urban primacy > regional economic linkage strength > spatial compactness.
科学合理的空间结构不仅能促进区域资源的高效利用，还能有效避免交通拥堵、住房短缺、资源匮乏等“城市病”。它是区域发展的“调节器”和“助推器”。本文首先从规模分布、中心结构、空间联系和紧凑性四个维度测度了长江经济带的空间结构：城市规模基尼系数、首位度、区域经济联系强度和空间紧凑性；其次，运用优化的超松弛基于非期望的测度模型（Super-Slack Based Measure-Undesirable model）对长江经济带可持续发展状况进行评价；最后，构建了基于区域空间结构的可持续发展关联分析模型。基于长江经济带的整体视角和 11 个省市的个体视角，分析了长江经济带空间结构与可持续发展的关系。研究发现，四个空间结构指标对长江经济带可持续发展水平的影响在五个不同时期较为稳定，排名结果依次为：城市规模基尼系数>首位度>区域经济联系强度>空间紧凑性。
